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Home > Products > Stepper Motor Controls

Note: Please check the "Last Updated" date under the Part Number to make sure that you have the latest Data Sheet.

For Non-RoHS Packages, please contact the factory for availability.

Stepper Motor Controller…. (24 Pins)
LS7290, LS7290-S, LS7290-TS
Last Update: 07/20/11
Controls Bipolar and Unipolar Stepper Motors
Full, 1/2 step modes selection
Direct interface to L298 for BiPolar motors
Enable, Step, Direction and Reset control inputs
PWM chopper circuit for step and torque control
Two peak current sense comparators with external reference input
Programmable interstep blanking delay
3 to 5.5 volt operation
 
Micro-Stepper Motor Controller…. (24 Pins; 28 Pins)
LS8292, LS8292-S, LS8292-TS
LS8293, LS8293-S, LS8293-TS
Last Update: 06/14/13
Controls Bipolar and Unipolar Stepper Motors
Full, 1/2, 1/4, 1/8, 1/16 and 1/32 Stepping modes selection
PWM outputs for external H-bridge drivers
Dual precision DAC references for PWM Sense Comparators
Fast, Slow, Single-Mixed and Dual-Mixed Decay modes selection

Programmable delay for sense input blanking

Programmable delay for the Mixed-Decay cycles

Holding Torque at reduced power for idling motor

Auto-switch to Holding Torque with programmable delay from idle state

Inputs for Step, Direction, Reset to home and Disable PWM

IOs for external clock or built-in oscillator
Supply current < 400uA
Supply voltage: 4.5 to 5.5V
 
Stepper Motor Controller…. (20 Pins; 20 Pins)
LS8297, LS8297-S, LS8297-TS
LS8297CT, LS8297CT-S, LS8297CT-TS
Last Update: 04/20/09
Low cost, low current, pin-compatible replacement for L297.
Torque Ripple Compensated half-steps – LS8297CT
Controls two-phase Bipolar and four-phase Unipolar motors
Interface to four AND Gates driving four N-Channel MOSFET's for Unipolar motors
Normal/wave drive
PWM chopper circuit for current control
Two over current sense comparators with external references input
All inputs and outputs TTL/CMOS compatible (TTL for 5V operation)
Supply current < 400uA
Supply voltage: 4.75 to 7V
 
Stepper Motor Controller…. (24 Pins)
LS8397, LS8397-S, LS8397-TS
Last Update: 04/21/09
Low cost, low current, pin-compatible replacement for L297.

L297 operating modes with added functions:

  • Selectable Torque Ripple Compensation MODE
  • Selectable Holding Torque MODE


Other features same as LS8297
 
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